Why is Long Lin of the Dream Country Mini Treasure Mission useless?

Long Lin is an item of the 20-level mainline mission and has no other use. At first, a monster named Mini Qianbao Town fell on the second floor of Xizhimen East, which seems to be the third floor (included in the specific task information).

This strange refresh is slow, which means it is difficult to meet.

Now all decorative items, that is, the decorative equipment of characters and pets will be bound for the first time.

For example, a character's decorative weapon coat hat cannot be traded or discarded after the first binding.